:root {
  --color-bg: #f8f6fa;
  --color-surface: #ffffff;
  --color-surface-alt: #f1eef6;
  --color-text: #292733;
  --color-muted: #746f80;
  --color-border: #e7e0ec;
  --color-primary: #a98cc6;
  --color-primary-dark: #8f73ad;
  --color-primary-soft: #efe8f6;
  --color-blue: #a9c7d8;
  --color-blue-dark: #5d8296;
  --color-blue-soft: #edf5f8;
  --color-green: #a8cbb7;
  --color-green-dark: #5d8b70;
  --color-green-soft: #eef7f2;
  --color-pink: #d9a7b4;
  --color-pink-dark: #a66174;
  --color-pink-soft: #faeef1;
  --color-warning: #d7bc89;
  --color-warning-dark: #8a6b2c;
  --shadow-soft: 0 8px 24px rgba(58, 45, 74, 0.07);
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

button,
input,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

.app {
  width: 100%;
  max-width: 720px;
  min-height: 100vh;
  margin: 0 auto;
  background: var(--color-bg);
  display: flex;
  flex-direction: column;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(248, 246, 250, 0.96);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  padding: 12px 16px 10px;
}

.topbar-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.title-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.back-button {
  min-width: 36px;
  min-height: 36px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
  color: var(--color-primary-dark);
  font-size: 18px;
  font-weight: 800;
  line-height: 1;
}

.back-button:hover {
  border-color: rgba(169, 140, 198, 0.65);
  background: var(--color-primary-soft);
}

.screen-title {
  margin: 0;
  font-size: 20px;
  line-height: 1.2;
  font-weight: 700;
  letter-spacing: 0;
}

.screen-subtitle {
  margin: 4px 0 0;
  color: var(--color-muted);
  font-size: 13px;
}

.mode-switch {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
  min-width: 178px;
  padding: 3px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
}

.mode-switch button {
  min-height: 32px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--color-muted);
  font-size: 13px;
}

.mode-switch button.active {
  background: var(--color-primary);
  color: #ffffff;
}

.content {
  flex: 1;
  padding: 16px;
  padding-bottom: 78px;
}

.section {
  margin-bottom: 18px;
}

.section-title {
  margin: 0 0 10px;
  font-size: 16px;
  font-weight: 700;
}

.stack {
  display: grid;
  gap: 10px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 12px;
  box-shadow: var(--shadow-soft);
}

.card.clickable {
  text-align: left;
  width: 100%;
}

.card.clickable:hover {
  border-color: rgba(169, 140, 198, 0.65);
}

.card-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 8px;
}

.card-title {
  margin: 0;
  font-size: 15px;
  line-height: 1.25;
  font-weight: 700;
}

.card-meta {
  margin: 3px 0 0;
  color: var(--color-muted);
  font-size: 13px;
  line-height: 1.35;
}

.card-text {
  margin: 8px 0 0;
  color: var(--color-text);
  font-size: 14px;
  line-height: 1.45;
}

.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}

.badge {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  border-radius: 999px;
  padding: 3px 9px;
  font-size: 12px;
  font-weight: 650;
  white-space: nowrap;
}

.badge.pending,
.badge.info {
  background: var(--color-blue-soft);
  color: var(--color-blue-dark);
}

.badge.approved,
.badge.success {
  background: var(--color-green-soft);
  color: var(--color-green-dark);
}

.badge.suggested,
.badge.reschedule_suggested,
.badge.warning {
  background: #fbf5e8;
  color: var(--color-warning-dark);
}

.badge.declined,
.badge.danger {
  background: var(--color-pink-soft);
  color: var(--color-pink-dark);
}

.badge.cancelled,
.badge.expired,
.badge.muted {
  background: #edf0f3;
  color: #56606d;
}

.button {
  min-height: 36px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  padding: 7px 11px;
  font-weight: 700;
  color: var(--color-text);
  background: var(--color-surface);
}

.button.primary {
  background: var(--color-primary);
  color: #ffffff;
}

.button.primary:hover {
  background: var(--color-primary-dark);
}

.button.secondary {
  border-color: var(--color-border);
  background: var(--color-surface);
}

.button.danger {
  color: #ffffff;
  background: var(--color-pink);
}

.button.ghost {
  border-color: transparent;
  background: transparent;
  color: var(--color-primary-dark);
}

.button.full {
  width: 100%;
}

.button.selected {
  border-color: var(--color-primary);
  background: var(--color-primary-soft);
  color: var(--color-primary-dark);
}

.button:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

.actions {
  display: grid;
  gap: 8px;
  margin-top: 14px;
}

.inline-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.field {
  display: grid;
  gap: 6px;
}

.field label {
  color: var(--color-muted);
  font-size: 13px;
  font-weight: 650;
}

.input,
.textarea {
  width: 100%;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
  color: var(--color-text);
  padding: 11px 12px;
  outline: none;
}

.textarea {
  min-height: 92px;
  resize: vertical;
}

.input:focus,
.textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(169, 140, 198, 0.18);
}

.summary-list {
  display: grid;
  gap: 10px;
}

.summary-row {
  display: grid;
  grid-template-columns: minmax(96px, 0.42fr) 1fr;
  gap: 12px;
  font-size: 14px;
}

.summary-row span:first-child {
  color: var(--color-muted);
}

.slots-group {
  margin-top: 14px;
}

.slots-group h3 {
  margin: 0 0 8px;
  font-size: 14px;
  color: var(--color-muted);
}

.slot-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
}

.empty {
  padding: 22px 16px;
  text-align: center;
  color: var(--color-muted);
}

.empty h3 {
  margin: 0 0 6px;
  color: var(--color-text);
  font-size: 16px;
}

.history {
  display: grid;
  gap: 8px;
}

.history-item {
  border-left: 3px solid var(--color-border);
  padding: 2px 0 2px 10px;
  font-size: 13px;
  line-height: 1.4;
}

.history-time {
  color: var(--color-muted);
}

.stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.stat {
  width: 100%;
  text-align: left;
  cursor: pointer;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 12px 10px;
}

.stat:nth-child(1) {
  background: var(--color-blue-soft);
}

.stat:nth-child(2) {
  background: var(--color-green-soft);
}

.stat:nth-child(3) {
  background: var(--color-primary-soft);
}

.stat:hover {
  border-color: rgba(169, 140, 198, 0.65);
}

.stat-value {
  display: block;
  font-size: 20px;
  font-weight: 800;
}

.stat-label {
  display: block;
  margin-top: 2px;
  color: var(--color-muted);
  font-size: 12px;
  line-height: 1.25;
}

.bottom-nav {
  position: fixed;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: 100%;
  max-width: 720px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 4px;
  padding: 8px 10px 12px;
  background: rgba(255, 255, 255, 0.96);
  border-top: 1px solid var(--color-border);
  backdrop-filter: blur(12px);
}

.admin-tiles {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.admin-tile {
  width: 100%;
  min-height: 82px;
  text-align: left;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
  padding: 13px;
  box-shadow: var(--shadow-soft);
}

.admin-tile:nth-child(1) {
  background: var(--color-blue-soft);
}

.admin-tile:nth-child(2) {
  background: var(--color-green-soft);
}

.admin-tile:nth-child(3) {
  background: var(--color-primary-soft);
}

.admin-tile:nth-child(4) {
  background: var(--color-pink-soft);
}

.admin-tile strong {
  display: block;
  margin-bottom: 4px;
  font-size: 15px;
}

.admin-tile span {
  color: var(--color-muted);
  font-size: 13px;
}

.admin-tile:hover {
  border-color: rgba(169, 140, 198, 0.65);
}

.nav-button {
  min-height: 40px;
  border: 0;
  border-radius: var(--radius);
  background: transparent;
  color: var(--color-muted);
  font-size: 12px;
  font-weight: 700;
}

.nav-button.active {
  background: var(--color-primary-soft);
  color: var(--color-primary-dark);
}

.dialog-backdrop {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: 16px;
  background: rgba(15, 23, 42, 0.42);
}

.dialog {
  width: 100%;
  max-width: 520px;
  border-radius: 12px;
  background: var(--color-surface);
  padding: 16px;
  box-shadow: 0 24px 64px rgba(15, 23, 42, 0.22);
}

.dialog h2 {
  margin: 0 0 8px;
  font-size: 18px;
}

.dialog p {
  margin: 0;
  color: var(--color-muted);
  font-size: 14px;
  line-height: 1.45;
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 78px;
  z-index: 30;
  transform: translateX(-50%);
  width: calc(100% - 32px);
  max-width: 520px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-text);
  color: #ffffff;
  padding: 12px 14px;
  font-size: 14px;
  box-shadow: var(--shadow-soft);
}

@media (max-width: 430px) {
  .topbar-row {
    align-items: stretch;
    flex-direction: column;
  }

  .title-row {
    align-items: flex-start;
  }

  .mode-switch {
    min-width: 0;
    width: 100%;
  }

  .mode-switch button {
    font-size: 12px;
  }

  .grid-2,
  .grid-3,
  .slot-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .stats,
  .admin-tiles {
    grid-template-columns: 1fr;
  }

  .summary-row {
    grid-template-columns: 1fr;
    gap: 2px;
  }
}